大规模电网月度方式变压器变比优化方法  

Transformer Ratio Optimization Method for Large Scale Power Grid Monthly Operational Mode

作　　者：姚海成[1] 张金龙 鲍颜红 徐泰山 苏寅生[1] 苗本琳 YAO Haicheng;ZHANG Jinlong;BAO Yanhong;XU Taishan;SU Yinsheng;MIAO Benlin(Electric Power Dispatching and Control Center of China Southern Power Grid, Guangzhou 510623, China;NARI Group Corporation (State Grid Electric Power Research Institute), Nanjing 211106, China;State Key Laboratory of Smart Grid Protection and Control, Nanjing 211106, China)

机构地区：[1]中国南方电网电力调度控制中心,广东广州510623 [2]南瑞集团有限公司(国网电力科学研究院),江苏南京211106 [3]智能电网保护和运行控制国家重点实验室,江苏南京211106

出　　处：《现代电力》2019年第4期88-94,共7页Modern Electric Power

基　　金：南方电网公司科技项目(000000GS61160037)

摘　　要：针对工程实践中面临的大规模电网月度方式变压器变比优化问题,提出了一种基于集群并行计算的枚举组合优化方法。采用确定变比上下界、相同电气分区组合和逐步寻优方法缩小最优变比搜索区间,在线性区间内再基于变比灵敏度通过线性规划求解,并通过内点法收敛性改进提高计算效率。上述方法可以有效避免"组合爆炸"问题。通过南方电网实际案例,验证了所提方法的有效性。To solve transformer ratio optimization problem for large scale power grid monthly operational mode,a combinatorial optimization method based on cluster parallel computing is proposed in this paper.The searching range of optimal ratio is reduced through methods such as determining the upper and lower bound,ratio combination within electrical section,and step-by-step optimization,then the optimal tap position can be given out through linear programming in quasi-linear interval based on sensitivity.The computing efficiency is improved by enhancing the convergence of interior point algorithm.The method can effectively avoid the problem of ’combination explosion’.The effectiveness is verified by apractical case of the China Southern Power Grid.

关 键 词：动态无功优化 月度最优变比 现代内点法 组合优化 线性规划 收敛性 

分 类 号：TM744[电气工程—电力系统及自动化]